2BG4I-BIOSENSERINGBioSense Ring

VYVOTECHNOLOGYPTELTD 2.911(d)(5)(i)EquipmentTypeAttestationv1.2 Section2.911(d)(5)(i)Certification–EquipmentType Companyname:VYVOTECHNOLOGYPTELTD Address:37KallangPuddingRoad,#03-01TongLeeBuildingBlockB,Singapore349315, Singapore ProductName:BioSenseRing FCCID:2BG4I-BIOSENSERING Model(s):BioSenseRing 2.911(d)(5)(i)EquipmentType We,[VYVOTECHNOLOGYPTELTD](“theapplicant”)certifythattheequipmentforwhich authorizationissoughtthroughcertificationisnot:  Prohibitedfromreceivinganequipmentauthorizationpursuantto§2.903;oftheFCCrules.  Identifiedasanequipmenttypeinthe“CoveredList” NOTE1 Yourssincerely, Name:JessicachenDate:2024-07-25 TitleandCompanyname:Manager/VYVOTECHNOLOGYPTELTD NOTE1 “CoveredList”;istheListofEquipmentandServicesCoveredBySection2ofTheSecureNetworksAct,availableat https://www.fcc.gov/supplychain/coveredlist References; 1)986446D01CoveredEquipmentv01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2)FederalRegisterdocument2022-28263publishedon02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com munications-supply-chain-through-the

VYVOTECHNOLOGYPTELTD 2.911(d)(5)(ii)ApplicantAttestationv1.3 Section2.911(d)(5)(ii)Certification–Applicant(CoveredList) Companyname:VYVOTECHNOLOGYPTELTD Address:37KallangPuddingRoad,#03-01TongLeeBuildingBlockB,Singapore349315, Singapore ProductName:BioSenseRing FCCID:2BG4I-BIOSENSERING Model(s):BioSenseRing 2.911(d)(5)(ii)Applicantfiling We,[VYVOTECHNOLOGYPTELTD](“theapplicant”)certifythat,asofthedateofthefilingofthe application,theapplicantisnotidentified NOTE1 onthe“CoveredList” NOTE2 ,establishedpursuantto §1.50002ofthischapter,asanentityproducingcoveredcommunicationsequipment. Yourssincerely, Name:JessicachenDate:2024-07-25 TitleandCompanyname:Manager/VYVOTECHNOLOGYPTELTD NOTE1 Deleteoptionnotapplicabletothisapplication. NOTE2 “CoveredList”;istheListofEquipmentandServicesCoveredBySection2ofTheSecureNetworksAct,availableat https://www.fcc.gov/supplychain/coveredlist References; 1)986446D01CoveredEquipmentv01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2)FederalRegisterdocument2022-28263publishedon02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com munications-supply-chain-through-the

VYVOTECHNOLOGYPTELTD OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 USA Date:2024-07-25 Subject;RequestforLongTermConfidentiality FCCID:2BG4I-BIOSENSERING ToWhomItMayConcern, PursuanttotheprovisionsoftheCommission’srulesTitle47Sections§0.457and§0.459,we arerequestingtheCommissiontowithholdthefollowingattachment(s)asconfidential documentsfrompublicdisclosureindefinitely. Thesedocumentscontaindetailedsystemandequipmentdescriptionsandareconsideredas proprietaryinformationinoperationoftheequipment.Thepublicdisclosureofthesedocuments mightbeharmfultoourcompanyandwouldgivecompetitorsanunfairadvantageinthemarket. SchematicDiagram BlockDiagram PartsList OperationalDescription Itisourunderstandingthatallmeasurementtestreports,FCCIDlabelformatand correspondenceduringthecertificationreviewprocesscannotbegrantedasconfidential documentsandthisinformationwillbeavailableforpublicreviewoncethegrantofequipment authorizationisissued. Sincerely, Signature: Name:Jessicachen Title:Manager

VYVOTECHNOLOGYPTELTD AgentAuthorization Company:VYVOTECHNOLOGYPTELTD Address:37KallangPuddingRoad,#03-01TongLeeBuildingBlockB, Singapore349315,Singapore ProductName:BioSenseRing ModelNumber(s):BioSenseRing ProductDescription:BioSenseRing WeauthorizeMiCOMLabsInc.,575BoulderCourt,Pleasanton,California94566,USA, toactonourbehalfonallmattersconcerningthecertificationofabovenamed equipment. WedeclarethatMiCOMLabsInc.isallowedtoforwardallinformationrelatedtothe approvalandcertificationofequipmenttotheregulatoryagenciesasrequiredandto discussanyissuesconcerningtheapprovalapplication.Anyandallactscarriedoutby MiCOMLabsonourbehalfshallhavethesameeffectasactsofourown. Signature:Date:2024-07-25 Name:Jessicachen Title:Manager Company:VYVOTECHNOLOGYPTELTD

Page 1 of 7 Appendix C: Photographs of EUT Product: BioSense Ring Model: BioSense Ring External Photos Page 2 of 7 Page 3 of 7 Page 4 of 7 Page 5 of 7 Page 6 of 7 Page 7 of 7

LabelArtworkandLocation Model:BioSenseRing Label: Size:L*W=10*3mm FCCID：2BG4I-BIOSENSERING Location

Page 1 of 2 Appendix C: Photographs of EUT Product: BioSense Ring Model: BioSense Ring Internal Photos Antenna Page 2 of 2

Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com TEST REPORT FCC ID. ............................ : 2BG4I-BIOSENSERING Test Report No. ............... : TCT240618E040 Date of issue ................... : Jul. 10, 2024 Testing laboratory .......... : SHENZHEN TONGCE TESTING LAB Testing location/ address: 2101 & 2201, Zhenchang Factory Renshan Industrial Zone, Fuhai Subdistrict, Bao'an District, Shenzhen, Guangdong, 518103, People's Republic of China Applicant's name ............ : VYVO TECHNOLOGY PTE LTD Address ........................... : 37 Kallang Pudding Road, #03-01 Tong Lee Building Block B, Singapore 349315, Singapore Manufacturer's name ... : Realwing Intelligent Technology (Shenzhen) Co., Ltd Address ........................... : #210-2, Block 1, 1970 High Tech Park, Longhua District, Shenzhen, Guangdong Province, China Standard(s) ..................... : KDB 447498 D01 General RF Exposure Guidance v06 Product Name ................. : BioSense Ring Trade Mark ...................... : vyvo Model/Type reference..... : BioSense Ring Rating(s).......................... : Rechargeable Li-ion Battery DC 3.7V Date of receipt of test item ......................................... : Jun. 18, 2024 Date (s) of performance of test ................................... : Jun. 18, 2024 ~ Jul. 10, 2024 Tested by (+signature) ... : Yannie ZHONG Check by (+signature) .... : Beryl ZHAO Approved by (+signature): Tomsin General disclaimer: This report shall not be reproduced except in full, without the written approval of SHENZHEN TONGCE TESTING LAB. This document may be altered or revised by SHENZHEN TONGCE TESTING LAB personnel only, and shall be noted in the revision section of the document. The test results in the report only apply to the tested sample. Report No.: TCT240618E040 Page 2 of 6 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Table of Contents 1. General Product Information .................................................................. 3 1.1. EUT description ..................................................................................................... 3 1.2. Model(s) list ............................................................................................................ 3 2. General Information ................................................................................. 4 2.1. Test environment and mode ................................................................................. 4 2.2. Description of Support Units ................................................................................ 4 3. Facilities and Accreditations .................................................................. 5 3.1. Facilities ................................................................................................................. 5 3.2. Location ................................................................................................................. 5 4. Test Results and Measurement Data ..................................................... 6 Report No.: TCT240618E040 Page 3 of 6 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com 1. General Product Information 1.1. EUT description Product Name ....................... : BioSense Ring Model/Type reference........... : BioSense Ring Sample Number....................: TCT240618E039-0101 Operation Frequency ........... : 2402MHz~2480MHz Modulation Type ................... : GFSK Antenna Type ........................ : Chip Antenna Antenna Gain ........................ : 3.12dBi Rating(s)................................ : Rechargeable Li-ion Battery DC 3.7V Note: The antenna gain listed in this report is provided by applicant, and the test laboratory is not responsible for this parameter. 1.2. Model(s) list None. Report No.: TCT240618E040 Page 4 of 6 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com 2. General Information 2.1. Test environment and mode Item Normal condition Temperature +25ºC Voltage DC 3.7V Humidity 56% Atmospheric Pressure: 1008 mbar Test Mode: Engineering mode: Keep the EUT in continuous transmitting by select channel 2.2. Description of Support Units The EUT has been tested as an independent unit together with other necessary accessories or support units. The following support units or accessories were used to form a representative test configuration during the tests. Equipment Model No. Serial No. FCC ID Trade Name / / / / / Note: 1. All the equipment/cables were placed in the worst-case configuration to maximize the emission during the test. 2. Grounding was established in accordance with the manufacturer’s requirements and conditions for the intended use. 3. For conducted measurements (Output Power, 20dB Occupied Bandwidth, Carrier Frequencies Separation, Hopping Channel Number, Dwell Time, Spurious Emissions), the antenna of EUT is connected to the test equipment via temporary antenna connector, the antenna connector is soldered on the antenna port of EUT, and the temporary antenna connector is listed in the Test Instruments. Report No.: TCT240618E040 Page 5 of 6 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com 3. Facilities and Accreditations 3.1. Facilities The test facility is recognized, certified, or accredited by the following organizations: ● FCC - Registration No.: 645098 SHENZHEN TONGCE TESTING LAB Designation Number: CN1205 The testing lab has been registered and fully described in a report with the (FCC) Federal Communications Commission. The acceptance letter from the FCC is maintained in our files. ● IC - Registration No.: 10668A-1 SHENZHEN TONGCE TESTING LAB CAB identifier: CN0031 The testing lab has been registered by Certification and Engineering Bureau of Industry Canada for radio equipment testing. 3.2. Location SHENZHEN TONGCE TESTING LAB Address: 2101 & 2201, Zhenchang Factory, Rensh…

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Page1 of 8 WWW.BDS666.COM 0755-83044319 SPECIFICATION Ceramic Antenna 2012 Size 2400-2500 MHz P/N: KH-2012-HM1 深圳市金航标电子有限公司 Page2 of 8 WWW.BDS666.COM 0755-83044319 1. Frequency 2400-2500 MHz 2. Applications For Miniaturized Bluetooth System 3. Dimensions (Unit : mm) 1). Over View : 2). PCB Layout (Unit : mm) : Page3 of 8 WWW.BDS666.COM 0755-83044319 4. Evaluation Board Size and Matching Circuits 5. Electrical Characteristics Part Number KH-2012-HM1 Central Frequency 2450 MHz Bandwidth 100(typ.) MHz V.S.W.R ≤2.0 Peak Gain 3.12 dBi Impedance 50 Ohm Polarization Linear Azimuth Beamwidth Omni-directional Page4 of 8 WWW.BDS666.COM 0755-83044319 6. Return Loss (S11) 7. Radiation Pattern & Efficiency Frequency (MHz) 2400 2450 2500 Efficiency (dB) -2.22 -1.87 -2.08 Efficiency (%) 60 65 62 Gain (dBi) 2.75 3.12 3.01 Page5 of 8 WWW.BDS666.COM 0755-83044319 8. Reflow Soldering Standard Condition 9. Packaging and Dimensions
Plastic Tape
Remarks for Package Reserve a length of 150~200mm for the trailer of the carrier and 250~300 mm for the leader of the carrier and further 250mm of cover tape at the leading part of the carrier.
Reel (4000 pcs/Reel)
Storage Period Oxidizable Material, 12 months in vacuum sealed bag, please re pack within 168 hours by re- seal the package treatment after using. Storage Temperature Range : <30 degree C, Humidity : <60%RH Reserve a length of 150~200mm for the trailer of the carrier and 250~300 mm for the leader of the carrier and further 250mm of cover tape at the leading part of the Material, 12 months in vacuum sealed bag, please repack within 168 seal the package treatment after using. Storage Temperature Range : <30 degree C, Humidity : <60%RH Page6 of 8 WWW.BDS666.COM 0755-83044319 Reserve a length of 150~200mm for the trailer of the carrier and 250~300 mm for the leader of the carrier and further 250mm of cover tape at the leading part of the Material, 12 months in vacuum sealed bag, please repack within 168 Page7 of 8 WWW.BDS666.COM 0755-83044319 10. Dependability Test Test item Test condition / Test method Specification Solderability IEC 60068-2-58 GB/T2423.28 *Solder bath temperature：240±5°C *Immersion time：2±0.5 sec Solder：Sn96.5Ag3.0Gu0.5 for lead-free. At least 95% of a surface of each terminal electrode must be covered by fresh solder. Leaching (Resistance to dissolution of metallization) JIS C5101 *Solder bath temperature：260±5°C *Leaching immersion time：10±1 sec Solder : Sn96.5 Ag3.0 Gu0.5 for lead-free. Loss of metallization on the edges of each electrode shall not exceed 25%. Resistance to soldering heat IEC 60068-2-58 GB/T2423.28 *Preheating temperature：120~150°C, 1 minute. *Solder temperature：260±5°C *Immersion time：10±1 sec Solder：Sn96.5Ag3.0Gu0.5 for lead-free Measurement to be made after keeping at room temperature for 24±2 hrs. No mechanical damage. Electrical specification shall satisfy the descriptions in electrical characteristics at the room temperature. Loss of metallization on the edges of each electrode shall not exceed 25%. Drop Test IEC 60068-2-32 GB/T2423.8 Customer’s specification. *Height：50 cm *Test Surface: Rigid surface of concrete or steel. *Times：6 surfaces for each units；2 times for each side. No mechanical damage. Electrical specification shall satisfy the descriptions in electrical characteristics at the room temperature. Vibration IEC 60068-2-6 GB/T 2423.10 *Frequency：10Hz~55Hz~10Hz(1min) *Total amplitude：1.5mm *Test times：6hrs.(Two hrs each in three mutually perpendicular directions) No mechanical damage. Electrical specification shall satisfy the descriptions in electrical characteristics at the room temperature. Adhesive Strength of Termination IEC60068-2-21 GB/T 2423.6 *Pressurizing force： 5N(≦0603)；10N(>0603) *Test time:10±1 sec No remarkable damage or removal of the termination. Page8 of 8 WWW.BDS666.COM 0755-83044319 Bending test IEC 60068-2-21 GB/T 2423.29 The middle part of substrate shall be pressurized by means of the pressurizing rod at a rate of about 1 mm/s per second until the deflection becomes 2mm and then pressure shall be maintained for 10±1 sec. Measurement to be made after keeping at room temperature for 24±2 hours. No mechanical damage. Electrical specification shall satisfy the descriptions in electrical characteristics at the room temperature. Temperature cycle IEC60068-2-14 GB/T 2423.22 30 minutes at-40°C±2°C. 10~15 minutes at room temperature. 30minutes at +85°C±2°C. 10~15 minutes at room temperature. Total 100 continuous cycles Measurement to be made after keeping at room temperature for 24±2 hrs. No mechanical damage. Electrical specification shall satisfy the descriptions in electrical characteristics at the room temperature. High temperature IEC 60068-2-2 GB/T2423.2 *Temperature：85±2°C. *Test duration：500+24/-0 hours. Measurement to be made after keeping at room temperature for 24±2 hrs. No mechanical damage. Electrical specification shall satisfy the descriptions in electrical characteristics. Humidity (steady conditions) IEC60068-2-3 GB/T 2423.3 *Humidity：85±5%R.H. *Temperature：85±2°C. *Time：500+24/-0 hrs. Measurement to be made after keeping at room temperature for 24±2 hrs ※ 200hrs measuring the first data then 300hrs data. No mechanical damage. Electrical specification shall satisfy the descriptions in electrical characteristics at the room temperature. Low temperature IEC 60068-2-1 GB/T2423.1 *Temperature：-40±2°C. *Test duration：500+24/-0 hours Measurement to be made after keeping at room temperature for 24±2 hrs. No mechanical damage. Electrical specification shall satisfy the descriptions in electrical characteristics at the room temperature.

Page 1 of 2 Appendix B: Photographs of Test Setup Product: BioSense Ring Model: BioSense Ring Radiated Emission Page 2 of 2 Conducted Emission